Pen Savings Ballpoint Pen Refills Compatible with Sheaffer Ballpoint Pens, K Style, 10 Pack, Medium Point, Smooth Writing, 1.0mm Tip (Black)

Works fine, very smooth writing

I have 3 of the same model shaefer pen. The last refills I bought - a different brand-were okay, but occasionally problematic. These write trouble free and with even ink deployment. And I tried them right away even though they'd been outside on the step in 30 degree weather and they wrote immediately.amd clear (other brands have a tendency to be problematic below 60 degrees F). They also came in a solid container with actual removable solid rubber tip guards (most other refills have just a little wax-like film that you almost can't detect, and just in a thin plastic bag). I think these measures contribute to maintaining the quality and longevity of the ink. And 10 for the cost can't be beat. It has only been a couple of days so I may adjust this but o doubt that I will need to

The refills fit my pen perfectly.

Couldn’t find them in the store

EXCELENT PRODUCT

The first one I used out of the package broke and leaked heavily all over my shirt. Second one is holding up so far but I do not trust this product.

Nice looking but seemed like not enough ink for me per refill.

Item photo shows half black and half blue. The package has only all black.